GB688904A - Improvements in or relating to television pick-up tubes - Google Patents

Improvements in or relating to television pick-up tubes

Info

Publication number
GB688904A
GB688904A GB27352/49A GB2735249A GB688904A GB 688904 A GB688904 A GB 688904A GB 27352/49 A GB27352/49 A GB 27352/49A GB 2735249 A GB2735249 A GB 2735249A GB 688904 A GB688904 A GB 688904A
Authority
GB
United Kingdom
Prior art keywords
photo
electrons
light source
television pick
tubes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27352/49A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heraeus Noblelight Analytics Ltd
Original Assignee
Cathodeon Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL737300857A priority Critical patent/NL154166B/en
Priority to NL76663D priority patent/NL76663C/xx
Application filed by Cathodeon Ltd filed Critical Cathodeon Ltd
Priority to GB27352/49A priority patent/GB688904A/en
Priority to US163658A priority patent/US2622226A/en
Priority to FR1019095D priority patent/FR1019095A/en
Priority to DEC3310A priority patent/DE866802C/en
Publication of GB688904A publication Critical patent/GB688904A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

688,904. Television pick-up tubes. THEILE, R., and CATHODEON, Ltd. May 16, 1950 [Oct. 25, 1949], No. 27352/49. Class 39(i) A television pick-up tube of the high velocity scanned type is provided with an auxiliary source of photo-electrons and an electron permeable electrode to accelerate the auxiliary photo-electrons on to the mosaic screen. The figure shows an image iconoscope provided with a photo-electric wall coating 10 illuminated by a light source 11; the light source may be non-uniform and may, for example, be more intense at the bottom than at the top to compensate for "flare". A grid 9 at a potential of 5-8 volts above that of the coating 10 is provided to accelerate electrons on to the mosaic with such velocities as to charge it negatively. The light source 11 may be illuminated intermittently, for example during the frame fly-back periods.
GB27352/49A 1949-10-25 1949-10-25 Improvements in or relating to television pick-up tubes Expired GB688904A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL737300857A NL154166B (en) 1949-10-25 SLIDING DEVICE FOR HORIZONTAL MOVEMENT OF OBJECTS.
NL76663D NL76663C (en) 1949-10-25
GB27352/49A GB688904A (en) 1949-10-25 1949-10-25 Improvements in or relating to television pick-up tubes
US163658A US2622226A (en) 1949-10-25 1950-05-23 Television pickup tube
FR1019095D FR1019095A (en) 1949-10-25 1950-05-26 Television tube enhancements
DEC3310A DE866802C (en) 1949-10-25 1950-10-21 Image pickup tube arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27352/49A GB688904A (en) 1949-10-25 1949-10-25 Improvements in or relating to television pick-up tubes

Publications (1)

Publication Number Publication Date
GB688904A true GB688904A (en) 1953-03-18

Family

ID=10258206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27352/49A Expired GB688904A (en) 1949-10-25 1949-10-25 Improvements in or relating to television pick-up tubes

Country Status (5)

Country Link
US (1) US2622226A (en)
DE (1) DE866802C (en)
FR (1) FR1019095A (en)
GB (1) GB688904A (en)
NL (2) NL154166B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL94738C (en) * 1950-12-06
BE511094A (en) * 1951-05-02
US2757233A (en) * 1951-09-29 1956-07-31 Emi Ltd Electron discharge tube arrangements
GB722907A (en) * 1951-10-11 1955-02-02 Pye Ltd Improvements in or relating to television pick-up tubes, and television apparatus incorporating the same
US2765422A (en) * 1951-11-19 1956-10-02 Itt Television camera tube
DE948614C (en) * 1952-11-25 1956-09-06 Fernseh Gmbh Image storage tubes in which the storage electrode is sprinkled with slow electrons
US2875360A (en) * 1953-05-25 1959-02-24 Westinghouse Electric Corp Image intensifier
BE529088A (en) * 1953-05-25
US2735035A (en) * 1953-07-08 1956-02-14 Television pick-up tubes and transmitting
US2992358A (en) * 1954-03-03 1961-07-11 Itt Radiation translating device
GB799425A (en) * 1954-07-20 1958-08-06 Emi Ltd Improvements in or relating to arrangements embodying pick-up tubes
US2748312A (en) * 1954-11-19 1956-05-29 Hughes Aircraft Co Cathode-ray storage tube system
US3014148A (en) * 1958-04-21 1961-12-19 United Aircraft Corp Infrared photo-imaging device
DE1173513B (en) * 1962-07-28 1964-07-09 Fernseh Gmbh Method and arrangement for recording television images with storage tubes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2360663A (en) * 1941-02-28 1944-10-17 Rca Corp Electrical biasing means
US2324534A (en) * 1941-09-30 1943-07-20 Bell Telephone Labor Inc Television transmitter
US2368884A (en) * 1942-08-21 1945-02-06 Rca Corp Television transmitting apparatus
US2378857A (en) * 1943-01-16 1945-06-19 Farnsworth Television & Radio Visual indicating system
US2451005A (en) * 1946-08-30 1948-10-12 Rca Corp Cathode-ray storage tube apparatus and method of operation

Also Published As

Publication number Publication date
NL76663C (en)
US2622226A (en) 1952-12-16
DE866802C (en) 1953-02-12
NL154166B (en)
FR1019095A (en) 1953-01-16

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